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金属学报  1985, Vol. 21 Issue (3): 13-21    
  论文 本期目录 | 过刊浏览 |
Fe-Si-C及Fe-Ni-C合金中的贝氏体亚结构的观察
李承基
北京钢铁学院
AN OBSERVATION OF BAINITIC SUBUNITS IN Fe-Ni-C AND Fe-Si-C ALLOYS
LI Chengji Beijing University of Iron and Steel Technology
引用本文:

李承基. Fe-Si-C及Fe-Ni-C合金中的贝氏体亚结构的观察[J]. 金属学报, 1985, 21(3): 13-21.
. AN OBSERVATION OF BAINITIC SUBUNITS IN Fe-Ni-C AND Fe-Si-C ALLOYS[J]. Acta Metall Sin, 1985, 21(3): 13-21.

全文: PDF(4985 KB)  
摘要: 本文用SEM,TEM电镜研究了Fe-Si-C及Fe-Ni-C合金中等温形成的贝氏体铁素体的形貌和亚结构.以相界面的结构及扩展特征的现有概念对这些观察结果进行了解释.分析结果认为:钢中贝氏体转变是从块型转变到马氏体型转变的中间过渡型连续系列,界面扩展的机制是扩展控制型-界面控制型-位错滑移型的混合机制,以界面控制型为主.
Abstract:The morphologies and substructures of bainitic ferrite formed isothermally inFe-Ni-C and Fe-Si-C alloys have been studied by means of SEM and TEM.Theseobservations are interpreted in terms of current ideas concerning the structureand migration characteristics of fcc/bcc interfaces.It is concluded that the bainiticsubunits are an autocatalytically nucleated variant of the bainite lath product,which grows with some departure from local equilibrium,and which neverthelessrequires carbon diffusion during growth,And the series of transformation productsin steel:Widmanst(a
收稿日期: 1985-03-18     
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